20 Years of JMAP
Development of
JMAP began in March, 2004.
Please consider a $20 donation to acknowledge JMAP's impact on
high school mathematics education for the last 20 years!
Prove the
Pythagorean identity sin2(θ) + cos2(θ) = 1 and use it
to find sin(θ), cos(θ), or tan(θ) given sin(θ), cos(θ), or tan(θ) and the
quadrant of the angle.